======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '214'
                                          'artist'  'James Brown'
                                     'text_people'  ''
                                         'release'  'Best of'
                                           'title'  'Hey America'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', 'Q-JZFKS-4', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rnb', 'blues', 'rhythm and blues', 'soul', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul-funk'
                                             'bpm'  '126.174'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Best of'
'TBPM' (BPM (beats per minute))                     '126.174'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk'
'TIT2' (Title/songname/content description)         'Hey America'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'James Brown'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '4'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rnb', 'blues', 'rhythm and blues', 'soul', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.608967'

========================== row from database ==========================
                                              'id'  1214617
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Soul/Brown, James - Hey America.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  214
                                           'genre'  funk or soul-funk
                                        'filesize'  6862584
                                           'mtime'  1620665556
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Soul Brown, funk or soul funk
                                      'tag_artist'  James Brown
                                     'tag_release'  Best of
                                       'tag_title'  Hey America
                                             'bpm'  126.174
                                    'search_title'  'america':2 'hey':1
                                   'search_artist'  'brown':2 'james':1
                                  'search_release'  'best':1 'of':2
                                     'search_rest'  'brown':6,7 'country':4 'exotica':2 'funk':8 'jazz':1 'oldies':3 'or':9 'soul':5
                                    'search_combo'  'america':2A 'best':5C 'brown':4B,12,13 'country':10 'exotica':8 'funk':14 'hey':1A 'james':3B 'jazz':7 'of':6C 'oldies':9 'or':15 'soul':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-4', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rnb', 'blues', 'rhythm and blues', 'soul', 'funk']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620665555.8431537  (2021-05-10 18:52:35)
                             'size'  6862584